diff --git a/Documentation/devicetree/bindings/sound/wlf,wm8903.yaml b/Documentation/devicetree/bindings/sound/wlf,wm8903.yaml
new file mode 100644
index 000000000000..afdcf9002b60
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/wlf,wm8903.yaml
@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/sound/wlf,wm8903.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: WM8903 audio codec
+
+description: |
+  This device supports I2C only.
+  Pins on the device (for linking into audio routes):
+      * IN1L
+      * IN1R
+      * IN2L
+      * IN2R
+      * IN3L
+      * IN3R
+      * DMICDAT
+      * HPOUTL
+      * HPOUTR
+      * LINEOUTL
+      * LINEOUTR
+      * LOP
+      * LON
+      * ROP
+      * RON
+      * MICBIAS
+
+maintainers:
+  - Mark Brown <broonie@opensource.wolfsonmicro.com>
+
+properties:
+  compatible:
+    const: wlf,wm8903
+
+  reg:
+    maxItems: 1
+
+  gpio-controller: true
+  '#gpio-cells':
+    const: 2
+
+  interrupts:
+    maxItems: 1
+
+  micdet-cfg:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+    description: Default register value for R6 (Mic Bias).
+
+  micdet-delay:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 100
+    description: The debounce delay for microphone detection in mS.
+
+  gpio-cfg:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    description: |
+      minItems: 5
+      maxItems: 5
+      A list of GPIO configuration register values.
+      If absent, no configuration of these registers is performed.
+      If any entry has the value 0xffffffff, that GPIO's
+      configuration will not be modified.
+
+  AVDD-supply:
+    description: Analog power supply regulator on the AVDD pin.
+
+  CPVDD-supply:
+    description: Charge pump supply regulator on the CPVDD pin.
+
+  DBVDD-supply:
+    description: Digital buffer supply regulator for the DBVDD pin.
+
+  DCVDD-supply:
+    description: Digital core supply regulator for the DCVDD pin.
+
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - '#gpio-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      wm8903: codec@1a {
+        compatible = "wlf,wm8903";
+        reg = <0x1a>;
+        interrupts = <347>;
+
+        AVDD-supply = <&fooreg_a>;
+        CPVDD-supply = <&fooreg_b>;
+        DBVDD-supply = <&fooreg_c>;
+        DCVDD-supply = <&fooreg_d>;
+
+        gpio-controller;
+        #gpio-cells = <2>;
+
+        micdet-cfg = <0>;
+        micdet-delay = <100>;
+        gpio-cfg = <
+          0x0600 /* DMIC_LR, output */
+          0x0680 /* DMIC_DAT, input */
+          0x0000 /* GPIO, output, low */
+          0x0200 /* Interrupt, output */
+          0x01a0 /* BCLK, input, active high */
+        >;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/sound/wm8903.txt b/Documentation/devicetree/bindings/sound/wm8903.txt
deleted file mode 100644
index 6371c2434afe..000000000000
--- a/Documentation/devicetree/bindings/sound/wm8903.txt
+++ /dev/null
@@ -1,82 +0,0 @@
-WM8903 audio CODEC
-
-This device supports I2C only.
-
-Required properties:
-
-  - compatible : "wlf,wm8903"
-
-  - reg : the I2C address of the device.
-
-  - gpio-controller : Indicates this device is a GPIO controller.
-
-  - #gpio-cells : Should be two. The first cell is the pin number and the
-    second cell is used to specify optional parameters (currently unused).
-
-Optional properties:
-
-  - interrupts : The interrupt line the codec is connected to.
-
-  - micdet-cfg : Default register value for R6 (Mic Bias). If absent, the
-    default is 0.
-
-  - micdet-delay : The debounce delay for microphone detection in mS. If
-    absent, the default is 100.
-
-  - gpio-cfg : A list of GPIO configuration register values. The list must
-    be 5 entries long. If absent, no configuration of these registers is
-    performed. If any entry has the value 0xffffffff, that GPIO's
-    configuration will not be modified.
-
-  - AVDD-supply : Analog power supply regulator on the AVDD pin.
-
-  - CPVDD-supply : Charge pump supply regulator on the CPVDD pin.
-
-  - DBVDD-supply : Digital buffer supply regulator for the DBVDD pin.
-
-  - DCVDD-supply : Digital core supply regulator for the DCVDD pin.
-
-Pins on the device (for linking into audio routes):
-
-  * IN1L
-  * IN1R
-  * IN2L
-  * IN2R
-  * IN3L
-  * IN3R
-  * DMICDAT
-  * HPOUTL
-  * HPOUTR
-  * LINEOUTL
-  * LINEOUTR
-  * LOP
-  * LON
-  * ROP
-  * RON
-  * MICBIAS
-
-Example:
-
-wm8903: codec@1a {
-	compatible = "wlf,wm8903";
-	reg = <0x1a>;
-	interrupts = < 347 >;
-
-	AVDD-supply = <&fooreg_a>;
-	CPVDD-supply = <&fooreg_b>;
-	DBVDD-supply = <&fooreg_c>;
-	DCVDC-supply = <&fooreg_d>;
-
-	gpio-controller;
-	#gpio-cells = <2>;
-
-	micdet-cfg = <0>;
-	micdet-delay = <100>;
-	gpio-cfg = <
-		0x0600 /* DMIC_LR, output */
-		0x0680 /* DMIC_DAT, input */
-		0x0000 /* GPIO, output, low */
-		0x0200 /* Interrupt, output */
-		0x01a0 /* BCLK, input, active high */
-	>;
-};
